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How does transient heat transfer differ from steady state heat transfer?
In transient heat transfer, the rate of heat transfer is changing with time. By definition, in steady-state heat transfer, the rate of heat transfer does NOT change with time. In the real world, heat transfer starts out as transient and then approaches steady-state with time until the difference between the actual and the ideal becomes negligible or until thermal equilibrium is approached.
Does heat transfer mean the same as heat transformation?
heat transfer is when heat from one object transfers to another. Heat transformation is when you have enough heat or cold to change the state of an object (ice to water).
Which state of matter is least likely to transfer heat by convection?
Solid state because the particles are unable to circulate. Liquid and gas both transfer by convection.
What is Heat transfer in semi infinite plate with convection boundary classical solution?
equate the convection heat transfer @ boundary to conduction heat transfer just before the boundary....the maths involved is complex one ..so you may refer to J.P. HOLMAN "CONVECTION BOUNDARY CONDITION" section 4.4
Heat can be transfered by conduction or convection?
By both way. Conduction is the basic of heat transfer, the energy (heat) is transfer from molecule to molecule from different in temperature gradient. Concept of convection is when there is motion of molecule come to concern like wind blow and take away the heat rapidly. Convection heat transfer can only occur in fluid state e.g. liquid and gas. In solid, only conduction heat transfer taken place.
What has the author J E LaGraff written?
J. E. LaGraff has written: 'Unsteady transonic heat transfer in a transient facility' -- subject(s): Solid surfaces, Rarefied gas dynamics, Gas flow, Aerodynamic heat transfer, Transonic flow, Unsteady flow
What is thermal condition?
heat transfer from one molecule to another
What condition must exist for transfer of heat to occur?
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Describe the condition that must exist for transfer of heat to occur?
Heat is a transfer of energy from one object to another due to a difference in tempurature.
Where can heat transfer happen?
any where but condition is there should be temperature difference
How does transient heat transfer differ from steady state heat transfer?
In transient heat transfer, the rate of heat transfer is changing with time. By definition, in steady-state heat transfer, the rate of heat transfer does NOT change with time. In the real world, heat transfer starts out as transient and then approaches steady-state with time until the difference between the actual and the ideal becomes negligible or until thermal equilibrium is approached.
Does heat transfer mean the same as heat transformation?
heat transfer is when heat from one object transfers to another. Heat transformation is when you have enough heat or cold to change the state of an object (ice to water).
What has the author Rama S R Gorla written?
Rama S. R. Gorla has written: 'Effects of unsteady free stream velocity and free stream turbulence on stagnation point heat transfer' -- subject(s): Transmission, Heat, Fluid mechanics
What is convective heat transfer?
Convection heat transfer is the transfer of heat by the movement of a fluid.
Why steady state heat transfer doesnot change with respect to time?
Steady-state heat transfer does not change with time - because - that is the definition of steady-state, i.e. "steady-state" means "does not change with time".As for why heat transfer might be steady state - that would be a consequence of the driving forces and physical conditions remaining constant with time. For example:Heat source remains the same temperatureHeat sink remains the same temperatureHeat source remain in the same position relative to each other, both in terms of distance and orientation.Surface areas of heat source and heat sink remain the same.Any intervening medium remains the same composition, temperature, density, and pressure.If convection is occurring, flow rates remain constant.If radiative heat transfer is occurring, any intervening medium has constant transmissivity, reflectivity, and absorbtion.If radiative heat transfer is occurring, radiating and absorbing surfaces maintain constant radiative and absorbing properties.There are a few other factors that can influence steady-state heat transfer, but these are a good description of the most important ones.
Which state of matter is least likely to transfer heat by convection?
Solid state because the particles are unable to circulate. Liquid and gas both transfer by convection.
Why work and heat transfer are not property of the system?
irstly from Thermodynamics point of view, we need to call heat as Heat transfer. Both Heat and work transfer are energies in transit. They come into picture only when a process is taking place. Also the quantity of heat transfer depends on the type of process or path followed. So Heat Transfer is a path function but not a property(which is a point function). 📷 In case of properties, the difference in properties (here P2-P1 or V2- V1)between state 1 and state 2 always remains same irrespective of the path followed. So properties are called Exact Differentials or Point functions. But in case of Heat transfer and Work transfer, the quantity of heat and work transfer between state 1 and state 2 depends on the path followed. Therefore heat and work transfer are not exact differentials,they are Inexact differentials or path functions.
